Hi, The reason why it was very slow to boot up, was because of the file system check.
# nano /boot/firmware/cmdline.txt dwc_otg.lpm_enable=0 console=tty0 root=/dev/mmcblk0p3 rootfstype=f2fs elevator=deadline fsck.repair=yes rootwait cma=416M -> dwc_otg.lpm_enable=0 console=tty0 root=/dev/mmcblk0p3 rootfstype=f2fs elevator=deadline rootwait cma=416M I erased "fsck.repair=yes" from the cmdline.txt above and now it boots up fast. Please close this bug. Best Regards, Evald